Official MCP RegistryHosted servernonprofit-explorer.caseyjhand.com
ProPublica Nonprofit Explorer
IRS Form 990 data for 1.8M+ nonprofits via ProPublica Nonprofit Explorer.
Connect to Claude Code
Copyclaude mcp add --transport http propublica-nonprofit-explorer https://nonprofit-explorer.caseyjhand.com/mcpVendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.
Endpoints
- https://nonprofit-explorer.caseyjhand.com/mcpstreamable-http
Published in the official MCP registry as “ProPublica Nonprofit Explorer”. Verified through the vendor namespace.